My guess if that your program is missing the NetBSD ELF signature.
A change since June was made to not assume that un-signed ELF
programs are NetBSD.
yah, as i recall, andrew's GCC patches use the gcc crt, which doesn't
include the proper netbsd note. i had similar problems until i changed
my sparc/i386 patches to use our crt.
the change should be reverted. we should default to trying to run
binaries with the default emulation, given the right executable format.